Closure for jars and the like



Sept. 29, 1925. 1,555,529

B. E. TAYLOR CLOURE FOR JARS AND THE LIKE' Filed Jan. 24, 1924 ar? 5 7 IHVENTOR MQZJQ ATTORNEY Patented Sept. 29, 1925.

UNITED, STATES 1,555,529 PATENT OFFICE.

BURT E. TAYLOR, or MOUNT VERNON, NEW YORK, ASSIGNOR worm: Bonnnn corr- IANY, 01' NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

CLOSURE FOR JARS AND THE LIKE.

Application filgd l'anuary 24,1924; sem a 688,142.

T all whom it may concern:

Be it known that I, BURT E. TAYnon, a citizen of the United States, residing in Mount Vernon, in the county of Westchester,

in the State of New York, have invented certain new. and useful Improvements in Closures for Jars and the like, of which the following is a specification.

The invention relates to an improvement in closures for jars and the like adapted to contain and preserve in vacuum, fruits, vegetables, other articles of food and the like.

lVhen fruits, vegetables and other articles of food are preserved in receptacles, such as 15. glass jars and tin cans, the receptacles are vacuumized'before they are sealed. Considerable difliculty has been experienced 1n breaking the vacuum in the receptacles so as to remove the cover to get at thecontents and many efforts have been made to provide jar and can closures of such construction as to overcome this 'difiieulty. The object of the present invention is to produce an improved simplified jar or can closure having provision whereby the contents of the jar or can are kept hermetically sealed and having provision whereby the vacuum may be readily broken and the cover easily removed. To this end the invention consists in the improved closure for jars and the like more fully described hereinafter and particularly pointed out in the appended claims.

The preferred form of the invention is illustrated in the accompanying drawings in which Fig. l is a longitudinal section through the upper part of a glass jar showing the im proved closure applied thereto; Fig. 2 1s a plan of the parts shown in Fig. l with a ortion of the outer cover broken away;

Fig. 3 is a longitudinal section through the inner cover, showing the lining and cap separated therefrom; Fig. 4 is an enlarged section through the central part of the inner cover showing the cap in place over the vent; and Fig. 5 is a fragmentary section, on an enlarged scale, showing the arrangement of the closure parts with relation to the neck of the jar.

The jar or can to which the improved closure is applied may be of any preferred shape and size. In the illustrated embodiment of the invention the improved closure is shown applied to a cylindrical glass jar 7 having its upper end contracted to form a neck 8 which is provided internally with a seat or shelf9. On the shelf 9 is-adapted to be seated a disc or plate 10 which serves as an inner cover. The plate 10 substantially fills the space provided by the shelf 9 and is protected from contact with the contents of the jar by means of a paper or fibre washer or lining 11 which covers the bottom of the plate and is interposed between the rim ofthe plate and the shelf 9. Around the rim of the plate 1-0 is a raised rib or ring 12 which, when the plate and lining are in place in the neck of the jar, projects upwardly slightly beyond the top edge of the jar, so that when the cup-like, threaded outer cover 13 is screwed down onto the upper end of the jar, as shown in Fig. 1, the under-surface of the cover will engage the top of the rib 12, thereby forcing the plate 10 and the lining 11 tightly against the seat or sheli 9. The raised rib or ring 12 may be formed in any preferrcdway and is conveniently made by pressing up the rim of the plate 10 at this point, as shown in Fig. 5. The rib 12 and the adjacent part 14 of the neck of the jar provide between them an annular space 15 adapted to receive a sealing substance 16, such as melted paraffin or gum, to seal the joint between the rim of the plate and the neck of the jar.

In the center'of the plate 10 and the lining 11 is a vent or vacuum hole 17 which is closed by a cap 18 in the form of a flat, relatively small disc or plate. In order that the joint between the cap' 18 and the plate 10 may be hermetically sealed to preservethe vacuum in the jar, the plate 10 is provided with the raised portion or ring 19 surrounding the vent 17 and within which the cap 18 is placed. The ring 19 serves to provide a recess for the sealing substance which seals the joint between the cap 18 and the adjacent part of the plate 10 around the vent.

Whenthe jar has been filled with the fruit, vegetables or other product to be preserved and the contents of the jar have been subjected to the requisite preliminary treatment, the liningll and plate 10 are first placed in position in the mouth of the jar and then the annular space 15 is filled'with melted paraffin or gum. The cap 18 is then placed over the vent 17 and the jar is introduced into the vacuum chamber, in the usual side of the jar to be properly vacuumized.

While the jar is in the vacuum chamber wax or gum is. sufliciently hardened the jar is removed from the vacuum chamber and the cover 13 is screwed down onto the upper end of the jar, thereby completely enclosing and protecting the inner cover and at the same time forcing it against its seat. To open the can it is simply necessary to unscrew the cover 13, pry up the cap 18 with a sharp-pointed instrument, thereby permitting air to enter the jar'through the vent 17, after which the inner cover or plate 10 and lining 11 are easily lifted from their seat.

Having thus described the invention what I claim as new is 1. A closure for jars and the like comprising a disc seated within the neck of the jar and having a vent, the rim of the disc aving a raised portion forming with the adjacent part of the neck of the jar a groove adapted to receive a sealing sub stance, a cap adapted to rest on the disc to seal the vent, and an outer cover threaded onto the neck of the jar and bearing against the raised portion of the disc.

2. A closure for jars and the like comprising, a plate adapted to be seated within the neck of the jar and having a vent, a raised rib extending around the rim of the plate and forming with the adjacent part of the neck of the jar an annular space to receive a sealing substance, a cap for closing the vent in the plate, and a cover fitted onto the neck of the jar and bearing against the rib, thereby forcing the plate against its seat.

3. A closure for jars and the like comprising, a plate adapted to be seated in the neck of the jar and having a vent surrounded by a ring rising from the plate, an annular rib on the rim of the plate and providing with the adjacent part of the neck of the jar an annular space to receive a sealing substance, a cap for closing the vent, the raised portion about the vent providing-a recess to receive a sealing substance to seal the joint between the cap and the plate, and a cover enclosing the upper end of the jar.

4. A closure for jars and the like comprising, a plate adapted to be seated in the neck of the jar and having a vent, a raised rib around the rim of the plate forming with the adjacent part of the neck of the jar an annular space to receive a sealing substance to seal the joint between the plate and the jar, a cap for closing the vent, a raised portion on the plate surrounding the cap and adapted to receive a sealing substance to seal the joint between the cap and the plate, and a cover enclosing the upper end'of the jar and bearing against therib on the plate.

5. A closure for jars and the like comprising,'a'plate adapted to be seated in the neck of the jar and having a vent, a lining on the underside of the plate, a ring rising from near the edge of the plate and forming with the adjacent part of the neck of the jar a space to receive a sealing substance to seal the joint. between the plate and the jar, a capfor closing the vent, a ring rising from the plate surrounding the cap to projar.

BURT E. TAYLOR.

'vide a space for sealing material to seal the 

